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Weather extremes

How extreme does Iquitos's weather get?

The hottest, coldest, wettest and snowiest days Iquitos has recorded — the outer limits of what its weather can do, and how far they sit beyond a normal day.

Based on 34 years of daily weather observations (1991–present), from the Coronel Francisco Secada Vignetta Intl station 7 km away. Updated through August 2025 — an all-time extreme only changes when a more extreme day actually occurs, so some dates are old. That is normal, not stale data.

The four kinds of extreme

The hottest, coldest, wettest and snowiest single days Iquitos has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
108°F Mar 23, 2003

That is about 18°F hotter than a normal March afternoon in Iquitos (typical high near 90°F).

The three most extreme on record

1 108°F Mar 23, 2003
2 108°F Jan 25, 2017
3 102°F Sep 11, 1991
❄️ Coldest night
48°F Jul 22, 2000

About 22°F colder than a normal July night in Iquitos (typical low near 70°F).

The three most extreme on record

1 48°F Jul 22, 2000
2 50°F Jul 19, 2003
3 54°F Mar 24, 1996
🌧️ Most rain in one day
18.16 in May 11, 2002

More rain in a single day than Iquitos usually gets in the whole month of May (typical May total about 11.2 in).

The three most extreme on record

1 18.16 in May 11, 2002
2 16.14 in Mar 28, 2020
3 12.72 in Apr 8, 2019

How hot and cold it gets, month by month

The shaded band is the normal range of daily temperatures for each month. The dots show the most extreme it has ever been — so you can see how far beyond a normal day the records really sit.

30°50°70°90°110°130° all-time high 108°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Iquitos's record heat sits well above even a hot day for the season — March's 108°F is about 18°F beyond a normal hot afternoon. Its record cold is just as far below a normal winter night — the dots mark how rare each extreme really is.

In plain terms

In a normal year, Iquitos's warmest days reach the low 90s°F and its coldest nights drop to the low 70s°F. But across the record it has gone as high as 108°F and as low as 48°F. A single day has delivered over 18 inches of rain. Those are the outer edges worth knowing if you are moving here, planning a trip, or thinking about a house.
Methodology & sources

Temperature & precipitation — the official 1991–2020 climate normals from SENAMHI, Peru's national weather service, measured at San Roque, about 6 km from the city centre.

How we build these numbers →